Surveying device for communication iron tower engineering construction

Abstract

The invention discloses a surveying device for communication iron tower engineering construction, and relates to the technical field of laser range finders, the surveying device comprises a laser range finder shell, a U-shaped bracket, a tripod, a disc and an electric control box, the U-shaped bracket is provided with three micro tilt angle sensors, and the three micro tilt angle sensors are combined with the range finding data of the laser range finder to form a laser range finder. Three-dimensional coordinates of iron tower parts can be accurately calculated, measurement errors can be corrected, a battery pack, a programmable controller and the like are arranged in an electric control box, the controller automatically controls a first micro motor, a second micro motor and a third micro motor according to a preset program and tilt angle sensor data, and intelligent adjustment and automatic measurement of three-dimensional space angles of a laser range finder shell are achieved. Manual errors are reduced, data can be processed, stored and analyzed in real time, accurate data are provided for iron tower construction progress monitoring, quality evaluation and maintenance, the intelligent level and efficiency of measurement are improved, and the project quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of laser rangefinders, and in particular to a surveying device for construction of communication tower projects. Background Art

[0002] In the field of communication tower construction, the quality and safety of the tower are always the top priority, and accurate measurement is the key link to achieve this goal; with the rapid development of communication technology, the construction scale and complexity of communication towers continue to rise; traditional measurement methods are gradually showing their limitations when facing today's engineering requirements; laser rangefinder, as a commonly used measurement tool, has certain advantages in distance measurement. It uses the characteristics of laser to more accurately measure the straight-line distance between two points, and has played an important role in fields such as construction measurement.

[0003] However, traditional laser rangefinders mainly focus on obtaining distance data in a single direction and have relatively simple functions. In the construction scenario of communication towers, their limitations become increasingly obvious. Communication towers are complex three-dimensional structures, and during the construction process, it is necessary to comprehensively and accurately measure multiple parameters of each component, such as position information, height data, and tilt angle. However, traditional laser rangefinders mainly focus on distance measurement and can usually only provide distance measurement data in a single direction, making it difficult to directly obtain the three-dimensional coordinate information of the target object. For complex three-dimensional structures such as communication towers, it is necessary to accurately measure the position, height, tilt angle and other parameters of each component during the construction process. Simply relying on traditional laser rangefinders cannot meet the high-precision measurement requirements. In view of this, this paper proposes a survey device for the construction of communication tower projects. Summary of the invention

[0004] The main purpose of the present invention is to provide a survey device for communication tower engineering construction, which can effectively solve the problems in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is: A surveying device for construction of a communication iron tower project, comprising a laser rangefinder housing, a U-shaped bracket rotatably connected to the middle end of the laser rangefinder housing, three micro inclination sensors respectively used for measuring a pitch angle, a yaw angle and a roll angle are fixedly mounted on the left and right end surfaces and the lower bottom surface of the U-shaped bracket, a first micro motor is fixedly connected to one side of the top end of the U-shaped bracket, a first worm gear reducer is connected to the rotor of the first micro motor, and the rotor of the first worm gear reducer is fixedly connected to the laser rangefinder housing; A tripod is fixedly connected to the lower part of the U-shaped bracket, a disc is rotatably connected to the lower end of the tripod, a second micro motor is fixedly mounted on the disc, a rotor of the second micro motor is connected to a second worm gear reducer, and the rotor of the second worm gear reducer is fixedly connected to the tripod; An electric control box is rotatably connected to the lower part of the disc, a third micro motor is fixedly connected inside the electric control box, a rotor of the third micro motor is connected to a third worm gear reducer, the rotor of the third worm gear reducer is fixedly connected to the disc, a battery pack, a programmable controller, and a motor driver are also fixedly installed in the inner cavity of the electric control box, and the battery pack is respectively connected to the programmable controller, the motor driver, three micro inclination sensors, the first micro motor, the second micro motor, and the third micro motor through wires.

[0006] Preferably, the rotor of the first worm gear reducer is connected to a first damping shaft, a first circular hole for connecting the first damping shaft is provided on one side of the laser rangefinder housing, and a plurality of first positioning holes are provided in communication with the periphery of the first circular hole.

[0007] Preferably, the first shock-absorbing shaft is mainly composed of a first round block, a first cylinder and a first rubber ring gasket for shock absorption. The first round block is coaxially arranged in the first cylinder, and the first round block is fixedly connected to the first worm gear reducer rotor. A plurality of first protrusions are arranged on the periphery of the first round block. The plurality of first protrusions on the periphery of the first round block correspond to a plurality of first positioning holes on the periphery of the first circular hole. The outer wall of the first cylinder and the inner wall of the first circular hole fit each other. A plurality of first positioning frames are fixedly connected to the periphery of the first cylinder. The ends of the first protrusions are arranged in the inner cavity of the first positioning frame and do not contact them. The first rubber ring gasket is filled between the first round block and the first cylinder.

[0008] Preferably, two symmetrical first waterproof boxes are fixedly connected to both sides of the U-shaped bracket, a second waterproof box is fixedly connected to the lower bottom surface of the U-shaped bracket, the three micro inclination sensors are respectively fixedly installed in the two first waterproof boxes and the second waterproof box, and the opening of the first waterproof box is sealed with a first sealing cover, and the opening of the second waterproof box is sealed with a second sealing cover.

[0009] Preferably, two first micro dampers are symmetrically connected on both sides above the second sealing cover of the second waterproof box at the lower end of the U-shaped bracket, the lower end of the first micro damper is rotatably mounted on the second sealing cover, and the top end of the first micro damper is rotatably connected to the lower bottom surface of the U-shaped bracket.

[0010] Preferably, two second micro dampers are symmetrically connected above the disc, the lower ends of the second micro dampers are rotatably mounted on the disc, and the top ends of the second micro dampers are rotatably connected to the bottom of the tripod.

[0011] Preferably, a crank is fixedly connected to the top of the disc, and handles are fixedly connected to both sides of the crank.

[0012] Preferably, one end of the electric control box is fixedly connected with an elastic waist clip, and the elastic waist clip has a J-shaped appearance.

[0013] Preferably, a connecting ring is fixedly installed obliquely on the elastic waist clip at a side away from the slit opening.

[0014] Preferably, the inner and outer walls of the elastic waist clip are in a corrugated structure with uniform thickness.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Precision measurement and data processing 1.1. Accurate determination of three-dimensional coordinates: Three miniature inclination sensors accurately measure the pitch angle, yaw angle and roll angle respectively, and can accurately determine the posture of the U-shaped bracket in three-dimensional space; combined with the distance data obtained by the laser rangefinder based on the laser time-of-flight principle, the three-dimensional coordinate information of each component of the communication tower can be accurately calculated; this helps to accurately control the position, height, inclination, etc. of each part during tower construction, effectively correct measurement errors, and ensure construction accuracy. For example, in the links of tower foundation positioning, tower body verticality monitoring, and crossbar installation angle determination, a reliable measurement basis is provided for project quality.

[0016] 1.2. Automated intelligent measurement: The programmable controller automatically controls the operation of the first micromotor, the second micromotor and the third micromotor according to the preset program and algorithm and the data of the micro inclination sensor, so as to realize the intelligent angle adjustment and automatic measurement of the laser rangefinder shell in three-dimensional space; this automated measurement mode reduces the subjectivity and errors of manual operation, can quickly and efficiently obtain a large amount of accurate measurement data, and can process, store and analyze the data in real time, providing comprehensive and accurate data support for the construction progress monitoring, quality assessment and subsequent maintenance and inspection of the communication tower project, greatly improving the intelligence level and efficiency of the measurement work.

[0017] 2. Motor control and protection 2.1. Waterproof and dustproof to ensure sensor stability: The first waterproof box and the second waterproof box on the U-shaped bracket provide a good protective environment for the micro inclination sensor, and the sealing cover effectively prevents dust, water vapor and other impurities from entering; in the complex and changeable environment of the communication tower construction site, it ensures that the sensor is protected from the harsh environment and always maintains stable working performance, reduces sensor failures and measurement deviations caused by environmental factors, improves the reliability and stability of the entire survey device for the construction of the communication tower project, reduces the maintenance cost and repair frequency of the survey device for the construction of the communication tower project, and extends the service life of the survey device for the construction of the communication tower project.

[0018] 2.2. Shock absorption and overload protection mechanism: 2.2.1. Shock-absorbing shaft and rubber ring pad: The first rubber ring pad and the second rubber ring pad are made of high-quality natural rubber and have good elasticity, fatigue resistance and shock-absorbing performance. During the rotation of the laser rangefinder housing, they can effectively absorb and buffer the reverse impact force caused by the rotation, and reduce the vibration damage to the motor and related transmission parts. Combined with the shock-absorbing shaft structure composed of the first round block, the first cylinder, the second round block, the second cylinder and other components made of high mechanical strength steel, the stability of the survey device for the construction of the communication tower project is further improved under frequent angle adjustments and complex external forces, and the precision components inside the survey device for the construction of the communication tower project are protected from damage, ensuring the accuracy of the measurement and the long-term reliable operation of the survey device for the construction of the communication tower project.

[0019] 2.2.2. Micro damper overload protection: The first micro damper and the second micro damper respectively provide overload protection for the first micro motor and the second micro motor rotors; when the survey device for the construction of the communication tower project encounters an unexpected excessive load or external force impact during operation, the damper can buffer and disperse the force in time to prevent the motor from burning or being damaged due to overload, thereby enhancing the risk resistance of the survey device for the construction of the communication tower project under complex working conditions and ensuring the overall stability and safety of the survey device for the construction of the communication tower project.

[0020] 2.2.3. Self-locking function of worm gear reducer: The first worm gear reducer, the second worm gear reducer and the third worm gear reducer connected to the first micromotor, the second micromotor and the third micromotor have self-locking characteristics, which can effectively prevent the damage to the motor rotor caused by the reverse rotation of the laser rangefinder housing due to external forces such as strong winds at high altitudes and collisions; this feature enables the survey device for the construction of communication tower projects to maintain a stable working state in a complex high-altitude working environment, and can ensure the safety of the motor and the transmission system even when subject to external interference, thereby improving the reliability and anti-interference ability of the survey device for the construction of communication tower projects.

[0021] 3. Ease of use and adaptability 3.1. Portability and safe fixation for aerial work: The elastic waist clip is made of stainless steel. Its unique J-shaped design, the corrugated structure of the inner and outer walls and the gap formed by the bottom surface of the electric control box can be conveniently and firmly clamped on the waist belt or the aerial work safety harness; through the cooperation of the connecting ring and the elastic strap, the survey device for the construction of the communication tower project is tightly and stably fixed on the operator, effectively preventing the risk of the device falling during the process of climbing the communication tower, and ensuring the safety of the operator; at the same time, this convenient carrying method enables the operator to operate with both hands free, which is convenient for various measurement operations at high altitudes, greatly improving the convenience and flexibility of on-site construction measurement, adapting to the special environmental requirements of aerial construction of communication towers, and reducing the problem of low measurement efficiency due to inconvenience in carrying.

[0022] 3.2. Humanized operation design: The crank and handle set on the disc conform to the principles of ergonomics. The operator can easily and comfortably control the overall orientation and angle adjustment of the survey device for the construction of communication tower projects when holding it; with the automatic control function of the programmable controller, the measurement in the horizontal, vertical or inclined direction can be completed conveniently and efficiently without complicated manual calibration and tedious operation steps, which significantly improves the convenience and work efficiency of the measurement operation, reduces the labor intensity of the operator, and enables the operator to focus more on the measurement work itself, improving the accuracy and efficiency of the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is an exploded view of the present invention; Figure 3 It is a schematic diagram of the connection between the electric control box and the elastic waist clip in the present invention; Figure 4 It is a structural schematic diagram of the laser rangefinder housing in the present invention; Figure 5 It is a structural schematic diagram of the U-shaped bracket in the present invention; Figure 6 It is a structural schematic diagram of the disc in the present invention; Figure 7 is a schematic structural diagram of the first micro motor in the present invention; Figure 8 It is a structural schematic diagram of the second micro motor in the present invention.

[0024] In the figure: 1. laser rangefinder housing; 101. first cylinder; 102. first circular hole; 103. first positioning hole; 2. U-shaped bracket; 201. first waterproof box; 202. second waterproof box; 203. tripod; 204. second circular hole; 205. second positioning hole; 206. third circular hole; 207. second cylinder; 208. first sealing cover; 209. second sealing cover; 210. first micro damper; 3. disc; 301. triangle block; 302. second micro damper; 303. crank; 304. handle; 305. fourth circular hole; 306. connection hole; 4. electric control box; 401. battery pack; 402. Programmable controller; 403, motor driver; 404, cover plate; 405, fifth circular hole; 5, elastic waist clip; 501, connecting ring; 502, corrugated structure; 6, micro tilt sensor; 7, first micro motor; 701, first worm gear reducer; 702, first round block; 703, first protrusion; 704, first cylinder; 705, first positioning frame; 706, first rubber ring gasket; 8, second micro motor; 801, second worm gear reducer; 802, second round block; 803, second protrusion; 804, second cylinder; 805, second positioning frame; 806, second rubber ring gasket; 9, third micro motor. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0026] refer to Figure 1-Figure 8 As shown, a surveying device for communication tower construction includes a laser rangefinder housing 1, a U-shaped bracket 2, a disc 3, an electric control box 4, and three connected micro inclination sensors 6 and a first micro motor 7, a second micro motor 8, and a third micro motor 9, which is intended to achieve precise horizontal, vertical and angular measurements in communication tower construction.

[0027] It should be noted that the micro inclination sensor 6 adopts a high-precision sensor model MPU6050, and its pitch and yaw angle measurement accuracy can reach ±0.1°, and the roll angle measurement accuracy is ±0.05°. In terms of resolution, the pitch and yaw angles are 0.01°, and the roll angle is 0.005°. The micro inclination sensor 6 has low power consumption characteristics. When working continuously in the surveying device for the construction of the communication tower project, the power consumption is only 3mA, which can effectively reduce the energy consumption of the battery pack 401. The micro inclination sensor 6 adopts advanced MEMS technology inside, and accurately calculates the corresponding angle change by measuring the components of gravity acceleration in different axial directions, and transmits the measurement data in real time to the programmable controller 402 in the form of digital signals, providing reliable data support for subsequent measurement accuracy correction and angle adjustment.

[0028] refer to Figure 2 and Figure 4 A first cylinder 101 and a first circular hole 102 are respectively provided at the center of the left and right sides of the laser rangefinder housing 1, the central axes of the first cylinder 101 and the first circular hole 102 coincide with each other, one end of the first cylinder 101 is fixedly connected to the side surface of one end of the laser rangefinder housing 1, the first circular hole 102 is located on one side of the laser rangefinder housing 1, and the periphery of the first circular hole 102 is connected to a plurality of first positioning holes 103.

[0029] According to the laser rangefinder in the prior art, the interior of the laser rangefinder housing 1 also includes a laser transmitting module, a receiving module and a signal processing circuit. The laser flight time principle is used to achieve ranging. The transmitting module transmits laser pulses, the receiving module captures reflected light, and the signal processing circuit measures the time difference between transmission and reception and converts it into distance data, which is transmitted to the subsequent control unit. The laser wavelength emitted by the laser transmitting module is 905nm and the power is 50mW. The wavelength has good transmission performance in the atmosphere, can effectively reduce scattering and absorption losses, and improve the accuracy and stability of ranging. The power is set to 50mW, which can not only meet the distance requirements of general communication tower construction measurement, but also ensure that it works within a safe power range to avoid damage to personnel and equipment. After the transmitting module emits a laser pulse, the receiving module has a high sensitivity and can quickly and accurately capture the reflected light. The signal processing circuit adopts a high-precision time measurement chip, and its time measurement resolution can reach 0.1ns. It can accurately measure the time difference between transmission and reception, and convert it into distance data through a built-in algorithm, and transmit it to the subsequent control unit.

[0030] refer to Figure 2 and Figure 7There are symmetrical third circular holes 206 on both sides of the top of the U-shaped bracket 2, the first cylinder 101 can be coaxially rotatably installed in one of the third circular holes 206, the first micro motor 7 is fixedly installed on the outside of the other third circular hole 206, one end of the first micro motor 7 with a rotor is fixedly connected to the first worm gear reducer 701, the rotor of the first micro motor 7 and the input shaft of the first worm gear reducer 701 are coaxially fixedly connected, the rotor of the first worm gear reducer 701 is coaxially connected to the first damping shaft, the first worm gear reducer 701 and the U-shaped bracket 2 are fixedly connected, the first damping shaft is mainly composed of a first round block 702, a first cylinder 704 and a first rubber ring gasket 706, the first round block 702 is coaxially placed in the first cylinder 704, and the first round block 702 is fixed to the rotor of the first worm gear reducer 701 The outer periphery of the first round block 702 is provided with a plurality of first protrusions 703, and the plurality of first protrusions 703 on the outer periphery of the first round block 702 correspond to the first positioning holes 103 on the outer periphery of the first circular hole 102. The outer wall of the first cylinder 704 and the inner wall of the first circular hole 102 fit each other. The outer periphery of the first cylinder 704 is fixedly connected with a plurality of first positioning frames 705. The ends of the first protrusions 703 are placed in the inner cavity of the first positioning frame 705 without contact. The first rubber ring gasket 706 is filled between the first round block 702 and the first cylinder 704. The first micro motor 7 drives the first damping shaft through the first worm gear reducer 701 to rotate the laser rangefinder housing 1 around the Y axis. The first worm gear reducer 701 realizes precise speed reduction control and self-locking protection of the motor rotor. The first rubber ring gasket 706 damps and reduces the reverse driving force of the laser rangefinder housing 1.

[0031] As can be seen from the above, the first damping shaft is special in that the first protrusions 703 on the periphery of the first round block 702 correspond to the first positioning holes 103 on the periphery of the first round hole 102. This structural design can provide a certain positioning and limiting effect for the laser rangefinder housing 1 to rotate around the Y axis through the cooperation of the first protrusions 703 and the first positioning holes 103 while realizing the damping function, thereby further improving the accuracy and stability of the rotation angle. The second damping shaft and the third damping shaft have similar structures to the first damping shaft. The second round block 802 of the second damping shaft is connected to the rotor of the second worm gear reducer 801, so that the laser rangefinder housing 1 rotates around the X axis. The third damping shaft is connected to the connecting hole 306 on the disc 3, and the laser rangefinder housing 1 is driven by the third micro motor 9 to rotate around the Z axis. They play a damping and stabilizing role in their respective rotation axes, thereby ensuring the accuracy and stability of the angle adjustment of the entire device in three-dimensional space.

[0032] refer to Figure 2 and Figure 5Two symmetrical first waterproof boxes 201 are fixedly connected to both sides of the U-shaped bracket 2, and a second waterproof box 202 is fixedly connected to the lower bottom surface of the U-shaped bracket 2. Three micro inclination sensors 6 are respectively fixedly installed in the two first waterproof boxes 201 and the second waterproof box 202. The opening of the first waterproof box 201 is fixedly sealed with a first sealing cover 208, and the opening of the second waterproof box 202 is fixedly sealed with a second sealing cover 209. The three micro inclination sensors 6 respectively measure the pitch angle, yaw angle and roll angle. The pitch angle is the rotation angle around the Y axis, which reflects the degree of inclination of the vertical plane. The yaw angle is the rotation angle around the Z axis, which describes the horizontal deviation. The roll angle is the rotation angle around the X axis, which reflects the rolling state of the horizontal plane. It is used to determine the inclination state of the U-shaped bracket 2 in three-dimensional space, and then assist the laser ranging data to determine the three-dimensional coordinates of the target object and correct the measurement accuracy.

[0033] refer to Figure 2 Two first micro dampers 210 are symmetrically connected to both sides of the upper end of the second sealing cover 209. The lower end of the first micro damper 210 is rotatably mounted on the second sealing cover 209. The top end of the first micro damper 210 is rotatably connected to the lower bottom surface of the U-shaped bracket 2 to protect the rotor of the first micro motor 7 from overload.

[0034] refer to Figure 2 and Figure 6 There is a disc 3 below the U-shaped bracket 2, a triangular block 301 is vertically fixedly installed on the disc 3, a fourth circular hole 305 is arranged on the triangular block 301, a tripod 203 is fixedly connected to the bottom of the U-shaped bracket 2, a second cylinder 207 is arranged at one end of the tripod 203, the second cylinder 207 can be coaxially rotatably installed in the fourth circular hole 305, a second circular hole 204 is arranged at the other end of the tripod 203, the central axis of the second circular hole 204 and the second cylinder 207 coincide, a plurality of second positioning holes 205 are arranged on the periphery of the second circular hole 204, and a second micro motor 8 is fixedly installed on the disc 3.

[0035] refer to Figure 8 The rotor of the second micro motor 8 is connected to the second worm gear reducer 801, the rotor of the second micro motor 8 is coaxially fixedly connected to the input shaft of the second worm gear reducer 801, the second worm gear reducer 801 is fixedly connected to the disk 3, the rotor of the second worm gear reducer 801 is coaxially connected to the second shock-absorbing shaft, the second shock-absorbing shaft is composed of a second round block 802, a second cylinder 804 and a second rubber ring gasket 806, and the structure is similar to the first shock-absorbing shaft. The second micro motor 8 drives the second shock-absorbing shaft through the second worm gear reducer 801 to make the laser rangefinder housing 1 rotate around the X-axis.

[0036] It should be added that the first rubber ring gasket 706 and the second rubber ring gasket 806 are specifically made of natural rubber with excellent elasticity, fatigue resistance, low heat generation and small creep. Natural rubber has good adhesion to metal parts, cold resistance, electrical insulation and processing performance, and good shock absorption effect. The first round block 702, the first cylinder 704 and several first protrusions 703, several first positioning frames 705, the second round block 802, the second cylinder 804 and several second protrusions 803 and several second positioning frames 805 are all made of steel with high mechanical strength.

[0037] refer to Figure 2 and Figure 6 A crank 303 is fixedly connected to the top of the disk 3, and handles 304 are fixedly connected to both sides of the crank 303. A connecting hole 306 is provided in the center of the disk 3. Two symmetrical second micro dampers 302 are provided on both sides of the tripod 203 and the disk 3. The lower end of the second micro damper 302 is rotatably installed above the disk 3, and the upper end of the second micro damper 302 is rotatably connected to the bottom of the tripod 203, which plays a buffering and stabilizing role.

[0038] It is further explained that the first micro damper 210 and the second micro damper 302 both adopt a damper of model FD-10, whose damping coefficient is 5N·s / m, which can effectively slow down the relative movement speed between the components when the survey device for construction of the communication tower project is impacted or vibrated, and protect the rotor of the first micro motor 7 from overload. The maximum bearing force of the damper is 50N, which is sufficient to cope with various vibrations and impacts that may occur in the construction environment of the communication tower under normal use. For example, when the survey device for construction of the communication tower project is shaken by wind or slightly collided by the operator during high-altitude operation, the first micro damper 210 and the second micro damper 302 can quickly play a role and convert the impact force into heat energy and other forms for consumption, thereby ensuring the stability and safety of each component of the device and extending the service life of the equipment.

[0039] refer to Figure 1 , Figure 2 and Figure 3There is an electric control box 4 below the disc 3, and a cover plate 404 is fixedly installed on the opening above the inner cavity of the electric control box 4. A fifth circular hole 405 for connecting the third micro motor 9 is provided on the cover plate 404. A battery pack 401, a programmable controller 402, and a motor driver 403 are fixedly installed in the inner cavity of the electric control box 4. The third micro motor 9 is also fixedly installed in the inner cavity of the electric control box 4. A third worm gear reducer is fixedly installed on one end of the rotor of the third micro motor 9. The input shaft of the third worm gear reducer and the rotor of the third micro motor 9 are coaxially fixedly connected. The rotor of the third worm gear reducer is coaxially connected with a third damping shaft. The third damping shaft is connected to the connecting hole 306 on the disc 3. The third damping shaft is similar to the first damping shaft. The rotor of the third micro motor 9 drives the third damping shaft through the third worm gear reducer to drive the laser rangefinder housing 1 to rotate around the Z axis.

[0040] It should be added that the programmable controller 402, the motor driver 403, the third micro motor 9, the first micro motor 7, the three micro inclination sensors 6 and the second micro motor 8 are all connected to the battery pack 401 through wires, and are also connected to each other through wires. The programmable controller 402 controls the operation of each micro motor according to the micro inclination sensor data according to the preset program and algorithm, adjusts the angle of the laser rangefinder shell, and realizes automatic measurement and data processing. The programmable controller 402 has pre-built-in specific algorithms and programs for communication tower construction measurement. When the survey device for communication tower engineering construction is started, the micro inclination sensor 6 collects the inclination angle data of the U-shaped bracket 2 in three-dimensional space in real time. The inclination angle data includes pitch angle, yaw angle and roll angle, and transmits these data to the programmable controller 402. The programmable controller 402 analyzes and calculates according to the received angle data. If it is found that the angle of the current laser rangefinder shell 1 deviates from the preset measurement standard angle, for example, the pitch angle deviation exceeds ±0.2°, a corresponding control signal will be generated according to the size and direction of the deviation.

[0041] It is further supplemented that the battery pack 401 adopts a lithium-ion battery with a capacity of 10Ah, which has a high energy density and can provide long-lasting power support for the entire surveying device. When fully charged, based on the power consumption of the normal operation of each component of the device, the average power consumption of the laser rangefinder is 2W when working, the average power consumption of the third micro motor 9, the first micro motor 7, and the second micro motor 8 is 1W when working, and the total power consumption of the three micro inclination sensors 6 and the programmable controller 402 and the motor driver 403 is about 1W. The battery life can be up to about 5 hours, which meets the single working time requirements of general communication tower construction measurement. The battery pack 401 adopts a standard charging interface, supports a charging current of 5V / 2A, and the charging time is about 5-6 hours. At the same time, the battery pack 401 has overcharge and over-discharge protection functions. Through the built-in protection circuit, it can effectively extend the service life of the battery and ensure the safety and stability of the battery in various complex usage environments.

[0042] refer to Figure 1 , Figure 2 and Figure 3 One end of the electric control box 4 is fixedly connected to an elastic waist clip 5, which is made of stainless steel. The elastic waist clip 5 is J-shaped, and the inner and outer walls of the elastic waist clip 5 are corrugated structures 502 with uniform thickness. A gap is formed between the elastic waist clip 5 and the lower bottom surface of the electric control box 4, and the gap is mainly used to clamp and connect a waist belt or a safety harness for high-altitude operations. A connecting ring 501 is fixedly installed on the elastic waist clip 5 at an angle away from the side of the gap opening. The connecting ring 501 is mainly used to connect an elastic strap, and the other end of the elastic strap is bound to the waist load-bearing ring of the belt or the safety harness for high-altitude operations to ensure that the device is stably fixed on the operator during construction to prevent falling and facilitate measurement operations. The elastic strap and the elastic waist clip 5 are convenient for electricians to carry and climb communication towers for high-altitude construction surveys.

[0043] As is known to all, the worm gear reducer has a self-locking function. The worm is the active part used to drive the worm wheel to rotate. To achieve self-locking, the worm wheel cannot drive the worm to rotate in the opposite direction. The worm lead angle of the worm gear reducer used in the first worm gear reducer 701, the second worm gear reducer 801 and the third worm gear reducer in this article is 3.5°. According to the self-locking condition of the worm gear transmission, the lead angle is less than the equivalent friction angle. Under the load condition of normal operation of the survey device for the construction of the communication tower project, the lead angle can ensure that the worm gear reducer can achieve a reliable self-locking function. In practical applications, when After the first micro motor 7 drives the laser rangefinder housing 1 to rotate to a specified angle around the Y axis through the first worm gear reducer 701, due to the existence of the self-locking function, even if it is disturbed by a certain external force, such as wind acting on the laser rangefinder housing 1, the laser rangefinder housing 1 can maintain a stable angular position and will not rotate due to the reverse driving force, thereby ensuring the accuracy and stability of the measured angle. Similarly, the second worm gear reducer 801 and the third worm gear reducer connected to the second micro motor 8 and the third micro motor 9 also have similar performance and functions, and provide stable angle control and self-locking protection for rotation around the X axis and the Z axis respectively.

[0044] The present invention, the surveying device for construction of communication iron tower project, through the coordinated work of various components, utilizes the laser ranging principle in combination with the micro inclination sensor 6 to measure data, and uses the programmable controller 402 to control the first micro motor 7, the second micro motor 8, and the third micro motor 9 to adjust the angle, so as to realize the accurate measurement of the construction of communication iron tower project. Taking the adjustment of pitch angle as an example, if the pitch angle needs to be increased, the programmable controller 402 will control the motor driver 403 to drive the first micro motor 7 to rotate forward, and the first micro motor 7 drives the laser rangefinder housing 1 to rotate forward around the Y axis through the first worm gear reducer 701 and the first shock-absorbing shaft. During the rotation process, the micro inclination sensor 6 continuously monitors the angle change and feeds back the new data to the programmable controller 402. When the angle reaches the preset standard range, the programmable controller 402 stops controlling the first micro motor 7, so as to realize the accurate adjustment of the angle of the laser rangefinder housing 1. The elastic waist clip 5 is convenient for carrying and use, and can effectively improve the efficiency and accuracy of the construction measurement of the communication iron tower.

[0045] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A surveying device for communication tower engineering construction, comprising a laser rangefinder housing (1), characterized in that: The middle end of the laser rangefinder housing (1) is rotatably connected to a U-shaped bracket (2); three micro inclination sensors (6) for measuring pitch angle, yaw angle and roll angle are respectively fixedly mounted on the left and right end surfaces and the lower bottom surface of the U-shaped bracket (2); a first micro motor (7) is fixedly connected to one side of the top end of the U-shaped bracket (2); a rotor of the first micro motor (7) is connected to a first worm gear reducer (701); and a rotor of the first worm gear reducer (701) is fixedly connected to the laser rangefinder housing (1); A tripod (203) is fixedly connected to the bottom of the U-shaped bracket (2); a disc (3) is rotatably connected to the bottom of the tripod (203); a second micro motor (8) is fixedly mounted on the disc (3); a rotor of the second micro motor (8) is connected to a second worm gear reducer (801); and a rotor of the second worm gear reducer (801) is fixedly connected to the tripod (203); An electric control box (4) is rotatably connected to the bottom of the disc (3), a third micro motor (9) is fixedly connected to the inside of the electric control box (4), a rotor of the third micro motor (9) is connected to a third worm gear reducer, the rotor of the third worm gear reducer is fixedly connected to the disc (3), a battery pack (401), a programmable controller (402), and a motor driver (403) are also fixedly installed in the inner cavity of the electric control box (4), and the battery pack (401) is respectively connected to the programmable controller (402), the motor driver (403), three micro inclination sensors (6), the first micro motor (7), the second micro motor (8), and the third micro motor (9) through wires.

2. The survey device for communication tower construction according to claim 1, characterized in that: The rotor of the first worm gear reducer (701) is connected to a first damping shaft, a first circular hole (102) for connecting the first damping shaft is provided on one side of the laser rangefinder housing (1), a plurality of first positioning holes (103) are provided in communication with the periphery of the first circular hole (102), the first damping shaft is mainly composed of a first round block (702), a first cylinder (704) and a first rubber ring gasket (706) for damping, the first round block (702) is coaxially arranged in the first cylinder (704), and the first round block (702) is fixedly connected to the rotor of the first worm gear reducer (701). Then, a plurality of first protrusions (703) are provided on the periphery of the first round block (702), the plurality of first protrusions (703) on the periphery of the first round block (702) correspond to a plurality of first positioning holes (103) on the periphery of the first round hole (102), the outer wall of the first cylinder (704) and the inner wall of the first round hole (102) fit each other, a plurality of first positioning frames (705) are fixedly connected to the periphery of the first cylinder (704), the ends of the first protrusions (703) are arranged in the first positioning frames (705), and the first rubber ring gasket (706) is filled between the first round block (702) and the first cylinder (704).

3. The survey device for communication tower construction according to claim 1, characterized in that: Two symmetrical first waterproof boxes (201) are fixedly connected to both sides of the U-shaped bracket (2), a second waterproof box (202) is fixedly connected to the bottom surface of the U-shaped bracket (2), the three micro inclination sensors (6) are respectively fixedly installed in the two first waterproof boxes (201) and the second waterproof box (202), and the opening of the first waterproof box (201) is sealed with a first sealing cover (208), and the opening of the second waterproof box (202) is sealed with a second sealing cover (209).

4. The survey device for communication tower construction according to claim 3, characterized in that: Two first micro dampers (210) are symmetrically connected to the upper sides of the second sealing cover (209) of the second waterproof box (202) at the lower end of the U-shaped bracket (2), the lower end of the first micro damper (210) is rotatably mounted on the second sealing cover (209), and the top end of the first micro damper (210) is rotatably connected to the lower bottom surface of the U-shaped bracket (2).

5. The survey device for communication tower construction according to claim 1, characterized in that: Two second micro dampers (302) are symmetrically connected to the upper part of the circular disk (3); the lower ends of the second micro dampers (302) are rotatably mounted on the circular disk (3); and the top ends of the second micro dampers (302) are rotatably connected to the lower part of the tripod (203).

6. The survey device for construction of a communication tower project according to claim 1, characterized in that: A crank (303) is fixedly connected to the top of the disc (3), and handles (304) are fixedly connected to both sides of the crank (303).

7. The survey device for communication tower construction according to claim 1, characterized in that: One end of the electric control box (4) is fixedly connected to an elastic waist clip (5), and the elastic waist clip (5) has a J-shaped appearance.

8. The survey device for communication tower construction according to claim 7, characterized in that: A connecting ring (501) is fixedly installed obliquely on the elastic waist clip (5) at a side away from the clip opening.

9. The survey device for construction of communication tower engineering according to claim 7, characterized in that: The inner and outer walls of the elastic waist clip (5) are in a corrugated structure (502) with uniform thickness.

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